#include <stdio.h>
int main(void)
{
  int *iptr;
  float *fptr;
  double *dptr;
  printf("sizeof(iptr) = %d\n", sizeof(iptr));
  printf("sizeof(fptr) = %d\n", sizeof(fptr));
  printf("sizeof(dptr) = %d\n", sizeof(dptr));
  return 0;
}
